We adopt the range of the axion mass that can explain the XENON1T excess at 95 % confidence level [1]},According to Ref. [2]} by the
XENON1T group, the suggested axion mass at 68 % CL is given by \(2.3 \pm 0.2\)  keV.
\(2.1\ {\rm keV}\lesssim m_a \lesssim 3.1 \ {\rm keV} \;\) 
